tests

Merge https://github.com/jaraco/skeleton #1284

Job	Run time
test (3.9, ubuntu-latest)	46s
ci_setuptools (3.10, ubuntu-latest)	4m 14s
test (3.9, macos-latest)	1m 6s
test_cygwin (39, windows-latest)	2m 29s
collateral (diffcov)	42s
test (3.9, windows-latest)	2m 18s
collateral (docs)	24s
test (3.13, ubuntu-latest)	43s
test_msvc_python_mingw	1m 47s
test (3.13, macos-latest)	56s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	1m 40s
test (3.13, windows-latest)	2m 32s
test_msys2_mingw (mingw32, i686, gcc, g++)	2m 5s
test (3.10, ubuntu-latest)	59s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	1m 40s
test (3.11, ubuntu-latest)	41s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	1m 44s
test (3.12, ubuntu-latest)	46s
test (3.14, ubuntu-latest)	1m 1s
test (pypy3.10, ubuntu-latest)	1m 42s
check	3s
release	0s
	30m 18s

Provide feedback